Feed-steamer



0. VAN TASSELL.

Peed-Steamer.

No. 225,892. tented Mar. 23, I880.

ATTORNEYS.

w are-" PATENT OFFICE.

OSCAR VAN TASSELL, OF PARKERSBURG, IOWA.

FEED-S TEAMER.

SPECIFICATION forming part of Letters Patent No. 225,892, dated March 23, 1880.

Application filed July 15, 1879.

To all whom it may concern Be it known that I, OSCAR VAN TASSELL, of Parkersburg, in the county of Butler and State of Iowa, have invented a new and Im proved Grain or Feed Steamer, of which the following is a specification.

Figure 1 is a sectional side elevation in line ar, Fig. 2. Fig. 2 is a transverse sectional elevation on line y y, Fig. 1.

Similar letters of reference indicate corresponding parts.

The object of this invention is to provide a novel steam-generator for heating and dampening wheat in flour-mills, for steaming feed for farm purposes, See.

The invention consists in a grain and feed steamer consisting of a cylindrical shell, heads provided with double rings, screw-rods provided with beads and nuts, semi-circular firebox provided with vertical face, and slopin plate, door-frame, hot-air flucs, stack, doors, grate, supply-pipe, and steam-pipe; also, in a combination of a semicircular lire-box provided with vertical face and sloping plate, and the lines provided with return bends, all as hereinafter described.

In the drawings, Arepresents the cylindrical shell of the generator or boiler; B, the castiron heads, provided on their inner faces with the double raised rings 0, that form between them a deep annular groove, into which the cylinder-edges are fitted.

When the cylinder and heads are set together proper packing is interposed to make the joints steam-tight.

I) are the screw rods or bolts,furnished with heads a and nuts I), that hold the heads to the cylinder by passing through them along the outside of the cylinder, and having their nuts tightly turned down.'

E is a fire-box of semicircular crosssection at the front of the boiler, and continuing so for threequarters, or thcreabout, of its length, when its flat upper surface turns at a right angle abruptly upward for a short distance, forming a vertical face, F, and then again as abruptly rearward in a horizontal line to the top of the door-frame G, in the rear boilerhead, while the lower curved surface of the fire-box terminates in a; semicircular plate, II, that slopes upward to the lower edge of the door frame G, thus forming a narrow throat between the sloping face of the plate H and the angle made by the upward turn of the top of the lire-box.

Through the vertical face F are entered the hotair tubes or lines I, that extend forward for some distance in the water-space of the boiler, then turn upward and rearward. maksome inches through the rear head of the boiler into the smoke-stack or bonnet K; or they may terminate in the boiler-head, if it be thought desirable.

The door L may be fitted into the door-frame G as shown, or it may be hinged to the doorframe in the usual manner. On its removal the lower tubes can be easily cleaned and air admitted to assist in the combustion of the smoke and gases, while the upper tubes can be cleaned on removal of the smoke-stack.

The fire-box is provided with a removable grate, M, and a door, N.

0 represents the supply-pipe of the boiler, and l the steam-pipe.

In ordinary practice a steam-dome is set upon the boiler, which may also be provided with the usual safety-valve, steamgages, &c., and the boiler is set on legs or frame, as conlines or tubes l, bonnet or stack K, doors L and N, grate M, supply-pipe O, and steampipe 1, constructed and arranged substantially as herein shown and described.

of a semicircular firebox, E, provided with vertical face h and sloping plate H, and the dues or tubes 1, provided with return bends, substantially as herein shown and described.

OSCAR VAN TASSELL.

Witnesses M. J. DowNEY, E. P. CALDWELL.

ing a return bend, and are made to project venient, and it is constructed with one or more and sloping plate H, door-frame Gr, hot-air o 2. The combination in a steamenerator 

